40 Hour Property and Building Inspection Practice Test

What is considered a finishing grading practice?

1. Gravel only

2. Clay mixed with sand

3. Sand mixed with top soil

4. Pure top soil application

The correct answer is: Sand mixed with top soil

Finishing grading is a critical step in landscaping and construction that ensures proper drainage, aesthetic appearance, and soil health for vegetation. The correct answer involves a mixture of sand with topsoil, which serves multiple purposes. Sand improves the drainage capabilities of the soil, preventing water from pooling and promoting healthy root growth for plants. When mixed with topsoil, it also enhances the aeration and workability of the soil, ensuring that it is not too compacted, which is essential for plant health. This combination provides a balanced environment that supports the establishment and growth of vegetation while also conforming to the desired grading contours and slopes. In contrast, the other options do not effectively support these objectives. Gravel alone does not provide the necessary nutrients or organic content for plant growth and can create drainage issues. Clay mixed with sand can lead to poor soil structure, often resulting in difficulties with drainage and aeration. Pure topsoil application, while beneficial, may not suffice for the grading process without some admixture to improve drainage and texture.